Found a used 2010 permagreen for $6000 locally with 28 hrs on it. I will spend a little over $9000 for a new z spray. This savings is enough to make me consider the permagreen even though it sounds like most people are pushing the z spray. I know that the z spray will spray better, but most lawns get one blanket app. per year and at that I'm not sure the better spraying ability is worth the extra $3000.